HP 7550A Emulation [KC-GL] (Mode 8)
7-97
The SM (Symbol Mode) instruction defines the first succeeding character as a symbol
character. The DT (Define label Terminator) instruction defines the first succeeding
character as a character plot terminator.
The character plot terminator is used to terminate the LB (LaBel) instruction. The default
terminator is the ETX character (End of Text), which uses ASCII code 3. If this termina-
tor is inconvenient, the DT instruction enables the user to change the character plot ter-
minator to a different character.
Parameter Formats
KC-GL parameters are specified in one of the following formats:
Integer
When not scaled, integers are valid in the range from –2
23
to 2
23
–1 plotter units. Digits
to the right of the decimal point are ignored. If no sign is specified, the value is assumed
to be positive.
Real number (decimal)
Real numbers from –2
23
to 2
23
–1 are valid. They can include up to eight digits to the
right of the decimal point. If no sign is specified, the value is assumed to be positive.
Scaled real number (scaled decimal)
Real numbers from –2
23
to 2
23
–1 can be used with up to eight digits to the right of the
decimal point. If no sign is specified, the value is assumed to be positive. Scaled real
numbers are used only with scaled user units. All KC-GL parameters that are interpreted
as user units are scaled.
Character string
A combination of characters, numeric expressions, and string variables.
When coding an instruction with two or more parameters (Examples: PA, PR, PU, PD)
remember that the parameters must be set apart by a separator.
KC-GL Environment Options
The FRPO G0 command establishes various options for the KC-GL environment. The
following table lists the meanings of the individual bits in the command. Each meaning
is explained in the following sections according to the bit position.
Table 7.28. FRPO G0 Command Options
Bit Position Bit Value Logic Value Description
0 0 0 Plot coordinate mode A
1 1 Plot coordinate mode B
1 0 0 Form feed in response to SP
2 1 SP
2 0 0 Automatic plot coordinate transition
4 1 Fixed plot coordinate
3 0 0 Normal mode
8 1 Enhance mode
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